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Potential of Gibberellic Acid (GA3) and Uniconazole for Enhancing the Cd Absorption Efficiency of Maize (Zea mays L.)

文献类型： 外文期刊

作者： Sun, Kaining 1 ; Yue, Yaoquan 2 ; Zhang, Haoran 2 ; Yang, Ning 1 ; Wen, Dan 1 ; Li, Xuhua 3 ; Chen, Ning 2 ; Yang, Yanjie 2 ; Wang, Kean 1 ;

作者机构： 1.Shandong Acad Agr Sci, Huang Huai Hai Reg Sci Observat & Expt Stn Vegeta, Shandong Key Lab Greenhouse Vegetable Biol,Inst V, Shandong Branch Natl Improvement Ctr Vegetables,M, Jinan 250100, Shandong, Peoples R China

2.Qingdao Agr Univ, Coll Hort, Qingdao 266109, Shandong, Peoples R China

3.Shandong Agr Univ, Coll Resources & Environm, Natl Engn Lab Efficient Utilizat Soil & Fertilize, Tai An 271018, Shandong, Peoples R China

关键词： facility soil; cadmium; phytoremediation; gibberellin; uniconazole

期刊名称：POLISH JOURNAL OF ENVIRONMENTAL STUDIES （ 影响因子：1.699； 五年影响因子：1.654 ）

ISSN： 1230-1485

年卷期： 2021 年 30 卷 1 期

页码：

收录情况： SCI

摘要： In this study, gibberellic acid 3 (GA3) and uniconazole were applied as the means of improving of cadmium (Cd) polluted site phytoremediation using maize (Zen mays L.). The results showed that GA3 (40 mg/L), and uniconazole (800 mg/L) could increase the biomass, plant height, stem diameter, leaf area, and root parameters of maize plants under Cd stress (0.4 mg/L) by foliar spraying. GA3 (40 m2/L) could increase the SPAD value of maize leaves by 23.45% and the net photosynthetic rate by 645.93%. Both plant regulators could alleviate the oxidative damage of maize and increase the activity of SOD and POD up to 11 A4 similar to 584i% and 35.00 similar to 99.55%, respectively. The content of MDA and H2O2 could be reduced by GA3 to 31.91% and 24.77%, respectively. GA3 at 40 mg/L could significantly increase the accumulation of Cd ions in the shoots, roots and whole plants of maize by 222.01%, 603.13% and 341.70%, respectively, showing the best effect among tested treatments. It was found that the application of plant growth regulators (PGRs) could increase the biomass and Cd concentration in maize organs, ultimately achieving the purpose of improving the remediation efficiency of Cd by increasing the absolute content of Cd in maize biomass.

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[1]Potential of Gibberellic Acid (GA3) and Uniconazole for Enhancing the Cd Absorption Efficiency of Maize (Zea mays L.). Sun, Kaining,Yang, Ning,Wen, Dan,Wang, Kean,Yue, Yaoquan,Zhang, Haoran,Chen, Ning,Yang, Yanjie,Li, Xuhua. 2021

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